Do it 100-Grit Medium Precut Drywall Sanding Screen, 2-Pack features an open mesh waterproof silicon carbide design that is for sanding and finishing drywall joint compound. This nonclogging abrasive screen has grit on both sides, which extends its lifespan and efficiency. It is versatile enough to be used on wood, metal, plastic, and auto body filler, making it a handy tool for various sanding tasks. Model Number: 380040